Has anyone out there painted a Split system Air Con? or any aircon for that matter. Inside only. I have some that all work perfectly fine in my IP's, but the air-cons are yellow from age. I'm thinking a plastic primer after a sand, followed by whatever topcoat i feel like will last. I'll probably use a gloss white 2-pac marine paint as i have some hand and its a lot better quality and cheap compared to acrylic or bunnings types.